What worries me much more than the tiles... what does the screed underneath look like? Is it cracked as well? Because that would definitely no longer be understood as shrinkage cracks. Screed must not crack and it does not settle.
These are wall tiles in the shower. So the topic of screed does not apply. A hole was drilled into one tile for the shower bar.
Both are on the wall tiles in the shower. One on the tile where the shower bar is attached. The other photo shows the wall tile that connects to the floor.
In the second picture, one could still try to blame the person who drilled into the shower rod, but for the crack in the first picture, I can't think of any other explanation than a mechanical impact on the tile.